Grok 4.5 vs Kimi K2.6
Head-to-head comparison across 2benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Verdict
Grok 4.5 leads for most workloads by a narrow margin.
Based on BenchLM composite scores, July 2026.
Grok 4.5
75
Kimi K2.6
75
Verified leaderboard positions: Grok 4.5 unranked · Kimi K2.6 #13
Treat this as a split decision. Grok 4.5 makes more sense if agentic is the priority or you need the larger 500K context window; Kimi K2.6 is the better fit if coding is the priority or you want the cheaper token bill.
Category Radar
Head-to-Head by Category
Category Breakdown
| Benchmark | Grok 4.5 | Δ | Kimi K2.6 |
|---|---|---|---|
| Agentic | 83.3 | ← 9.8 | 73.5 |
| Coding | 64.7 | → 7.9 | 72.6 |
| Knowledge | — | — | 42.2 |
| Math | — | — | 94.6 |
| Multimodal | — | — | 79.8 |
Operational Comparison
Grok 4.5
Kimi K2.6
$2 / $6
$0.95 / $4
N/A
N/A
N/A
N/A
500K
256K
Quick Verdict
Treat this as a split decision. Grok 4.5 makes more sense if agentic is the priority or you need the larger 500K context window; Kimi K2.6 is the better fit if coding is the priority or you want the cheaper token bill.
Grok 4.5 and Kimi K2.6 finish on the same provisional overall score, so this is less about a single winner and more about where the edge shows up. The provisional headline says tie; the benchmark table is where the real choice happens.
Grok 4.5 is also the more expensive model on tokens at $2.00 input / $6.00 output per 1M tokens, versus $0.95 input / $4.00 output per 1M tokens for Kimi K2.6. Grok 4.5 gives you the larger context window at 500K, compared with 256K for Kimi K2.6.
Benchmark Deep Dive
Frequently Asked Questions (3)
Which is better, Grok 4.5 or Kimi K2.6?
Grok 4.5 and Kimi K2.6 are tied on the provisional overall score, so the right pick depends on which category matters most for your use case.
Which is better for coding, Grok 4.5 or Kimi K2.6?
Kimi K2.6 has the edge for coding in this comparison, averaging 72.6 versus 64.7. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
Which is better for agentic tasks, Grok 4.5 or Kimi K2.6?
Grok 4.5 has the edge for agentic tasks in this comparison, averaging 83.3 versus 73.5. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
Self-host vs API cost
Estimates at 50,000 req/day · 1000 tokens/req average.
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